弱電一般是指直流電路或音頻、視頻線路、網絡線路、電話線路，直流電壓一般在36V以內。家用電器中的電話、電腦、電視機的信號輸入（有線電視線路）、音響設備（輸出端線路）等用電器均為弱電電氣設備。什么是弱電，弱電的用途有哪些：

    弱電是什(shen)么?

　　弱(ruo)電一般(ban)(ban)是指(zhi)直(zhi)流電路(lu)或音(yin)頻(pin)、視頻(pin)線路(lu)、網(wang)絡線路(lu)、電話線路(lu)，直(zhi)流電壓一般(ban)(ban)在36V以(yi)內。家用(yong)電器(qi)中的電話、電腦、電視機的信(xin)號輸入(有線電視線路(lu))、音(yin)響設備(輸出(chu)端線路(lu))等用(yong)電器(qi)均為弱(ruo)電電氣設備。

　　對弱電箱是什么?

　　弱(ruo)電(dian)箱，顧(gu)名(ming)思義是較弱(ruo)電(dian)壓線(xian)(xian)路的集中箱，一般用(yong)于現代家居裝修中，如網線(xian)(xian)，電(dian)話線(xian)(xian)，電(dian)腦的顯(xian)示器(qi)，USB線(xian)(xian)，電(dian)視的VGA,色差(cha)，天線(xian)(xian)等都可(ke)以放置其中;而如果這(zhe)些東西沒有順序的放，就(jiu)是一大團線(xian)(xian)，非常亂，顯(xian)得(de)不和(he)諧，還會影響清理。總之(zhi)，弱(ruo)電(dian)箱就(jiu)是用(yong)來裝這(zhe)些設備(bei)和(he)理線(xian)(xian)的。

　　弱電線纜是什么?

　　弱(ruo)電線(xian)纜是指用于(yu)安防通信、電氣裝(zhuang)備(bei)及相關弱(ruo)電傳輸用途的電纜。弱(ruo)電電纜的品牌有加奈美、紐崔克、凌宇(yu)、天(tian)誠、聯嘉祥(xiang)、秋葉原 、帝一(yi) 、一(yi)舟等(deng)。

    弱電的分(fen)類： 

　　建筑中(zhong)的(de)弱電主要有(you)兩類：一類是國家規(gui)定的(de)安全(quan)電壓(ya)等級及控制電壓(ya)等低電壓(ya)電能，有(you)交流(liu)與直流(liu)之分。

　　智(zhi)能(neng)化系(xi)統(tong)(tong)為(wei)(wei)建筑設(she)備(bei)監(jian)控(kong)系(xi)統(tong)(tong)(BA)、安(an)全防(fang)范(fan)系(xi)統(tong)(tong)(SA)、通(tong)訊(xun)網(wang)絡系(xi)統(tong)(tong)(CA)、辦公自動(dong)化系(xi)統(tong)(tong)(OA)、火(huo)災自動(dong)報(bao)警及(ji)消防(fang)聯動(dong)(FA)等系(xi)統(tong)(tong)-即我們常說的(de)5A系(xi)統(tong)(tong)，以(yi)集中監(jian)視、控(kong)制和(he)管(guan)理為(wei)(wei)目(mu)的(de)構成的(de)綜合(he)系(xi)統(tong)(tong);家庭(ting)(ting)內各種(zhong)數據(ju)采集、控(kong)制、管(guan)理及(ji)通(tong)訊(xun)的(de)控(kong)制或網(wang)絡系(xi)統(tong)(tong)等線(xian)路，則稱為(wei)(wei)智(zhi)能(neng)化線(xian)路(也就是家庭(ting)(ting)裝修中所說的(de)弱(ruo)電)。

　　弱電(dian)(dian)(dian)一(yi)般是指直(zhi)流電(dian)(dian)(dian)路(lu)(lu)或音頻、視頻線(xian)路(lu)(lu)、網絡(luo)線(xian)路(lu)(lu)、電(dian)(dian)(dian)話線(xian)路(lu)(lu)，直(zhi)流電(dian)(dian)(dian)壓一(yi)般在36V以(yi)內(nei)。家用(yong)電(dian)(dian)(dian)器(qi)(qi)中的電(dian)(dian)(dian)話、電(dian)(dian)(dian)腦、電(dian)(dian)(dian)視機的信號(hao)輸入(有線(xian)電(dian)(dian)(dian)視線(xian)路(lu)(lu))、音響設備(bei)(輸出端線(xian)路(lu)(lu))等用(yong)電(dian)(dian)(dian)器(qi)(qi)均為弱電(dian)(dian)(dian)電(dian)(dian)(dian)氣設備(bei)。

　  強電與(yu)弱(ruo)電的區別：

　　強電和(he)弱電主要區別(bie)是(shi)(shi)用途的不同。強電是(shi)(shi)用作一種動力能源(yuan)，弱電是(shi)(shi)用于信(xin)息(xi)傳遞。具體(ti)而(er)言，它(ta)們大致有(you)如下區別(bie)：

　　(1)交流頻率不同：強電的(de)頻率一般是50Hz(赫(he))，稱“工(gong)頻”，意即工(gong)業用電的(de)頻率：弱(ruo)電的(de)頻率往往是高頻或特高頻，以KHz(千赫(he))、MHz(兆赫(he))計。

　　(2)傳輸(shu)(shu)方式不同(tong)：強電(dian)(dian)以(yi)輸(shu)(shu)電(dian)(dian)線(xian)路傳輸(shu)(shu)，弱電(dian)(dian)的傳輸(shu)(shu)有有線(xian)與無線(xian)之(zhi)分。無線(xian)電(dian)(dian)則以(yi)電(dian)(dian)磁(ci)波(bo)傳輸(shu)(shu)。

　　(3)功率(lv)、電(dian)壓(ya)及電(dian)流(liu)大小不同：強電(dian)功率(lv)以KW(千(qian)(qian)瓦)、MW(兆瓦)計、電(dian)壓(ya)以V(伏)、KV(千(qian)(qian)伏)計，電(dian)流(liu)以A(安)、kA(千(qian)(qian)安)計;弱(ruo)電(dian)功率(lv)以W(瓦)、mW(毫瓦)計，電(dian)壓(ya)以V(伏)、mV(毫伏)計，電(dian)流(liu)以mA(毫安)、uA(微安)計，因而(er)其電(dian)路可(ke)以用印刷電(dian)路或集成(cheng)電(dian)路構成(cheng)。

　　當(dang)然，強(qiang)電(dian)(dian)(dian)中(zhong)也有(you)高(gao)頻(數百KHz)與中(zhong)頻設備，但電(dian)(dian)(dian)壓(ya)較高(gao)，電(dian)(dian)(dian)流也較大。又如手電(dian)(dian)(dian)筒與電(dian)(dian)(dian)動剃須刀雖然電(dian)(dian)(dian)壓(ya)很低，功率(lv)及(ji)電(dian)(dian)(dian)流很小，仍屬強(qiang)電(dian)(dian)(dian)。由(you)于現代技術的發展，弱(ruo)電(dian)(dian)(dian)己滲(shen)透(tou)到強(qiang)電(dian)(dian)(dian)領域，如電(dian)(dian)(dian)力電(dian)(dian)(dian)子(zi)器件、無線遙控等，但這些(xie)只能算(suan)作強(qiang)電(dian)(dian)(dian)中(zhong)的弱(ruo)電(dian)(dian)(dian)控制(zhi)部分(fen)，它與被(bei)控的強(qiang)電(dian)(dian)(dian)還(huan)是不同(tong)的。

　　弱電的應用：

　　一般情(qing)況下，弱電(dian)系統工(gong)(gong)(gong)程指第二類(lei)應用(yong)。主要(yao)包括：1、電(dian)視(shi)信號工(gong)(gong)(gong)程，如電(dian)視(shi)監控(kong)系統，有(you)線電(dian)視(shi)。2、通信工(gong)(gong)(gong)程，如電(dian)話(hua)。3、智能消防工(gong)(gong)(gong)程。4、擴聲與音(yin)響工(gong)(gong)(gong)程，如小區中(zhong)的(de)背(bei)景(jing)音(yin)樂廣播，建筑物中(zhong)的(de)背(bei)景(jing)音(yin)樂。5、綜合布線工(gong)(gong)(gong)程，主要(yao)用(yong)于計(ji)算機網(wang)絡(luo)。

　　弱(ruo)電(dian)系統主要針對(dui)的是建筑物(wu)，包括大廈、小區、機場、碼頭、鐵路、高速(su)公路等。

　　常見的弱電(dian)(dian)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)包括：閉路電(dian)(dian)視監控系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、防盜(dao)報(bao)警系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、門禁系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、電(dian)(dian)子巡更系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、停(ting)車場(chang)管(guan)理系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、可(ke)視對(dui)(dui)講系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、家庭智能(neng)化系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)及(ji)(ji)安防系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、背景音樂系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、LED顯(xian)示系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、等(deng)離子拼接(jie)屏(ping)(ping)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、DLP大屏(ping)(ping)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、三表抄送(song)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、樓宇自控系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、防雷與接(jie)地系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、尋呼對(dui)(dui)講及(ji)(ji)專業對(dui)(dui)講系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、弱電(dian)(dian)管(guan)道系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、UPS不間斷電(dian)(dian)源(yuan)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、機(ji)房(fang)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、綜合布線(xian)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、計算(suan)機(ji)局域網系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、物業管(guan)理系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、多功(gong)能(neng)會議室(shi)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、有線(xian)電(dian)(dian)視系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、衛星電(dian)(dian)視系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、衛星通(tong)訊(xun)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、消防系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、電(dian)(dian)話通(tong)訊(xun)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、酒(jiu)店管(guan)理系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)、視頻點播系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)(tong)(tong)等(deng)等(deng)。

　　弱電(dian)知(zhi)識大(da)全就(jiu)和(he)大(da)家分享到這里了，希望對大(da)家有(you)所(suo)幫助，更多相關信息請繼(ji)續關注一(yi)起裝修。